I have a 120 gal reef only w/ Rodactus, yellow polyps, 3 dif. color ricordias, feather shrooms, zoos, blue/purple metalics, sand polyps, lettuce nudibranch and typical janitor crew. However, the red/purple pimpled shrooms aren't looking so hot. My parameters are good, routine water changes, carbon and ph pad in use. I have had these shrooms for two months and have always looked great. I did have one recent casualty, a slug. When I was removing the dead slug he did release what looked to be a white cloud of toxin of sorts. everything else looks fine. Are the red pimpled shrooms any more susceptible to this toxin? Attached is a pic of the deceased slug.